 | Seokyo Hotel Seoul | 5.0 star rating | 135 | Gangbuk |
 | Seoul 53 hotel Hotel | 3.0 star rating | 31 | Gangbuk |
| Seoul N Hotel Dongdaemoon | 2.0 star rating | | Gangbuk |
 | Seoul Residence Hotel | Residence | 150 | Gangnam |
| Seoul Rex Hotel | 3.0 star rating | 108 | Seoul City |
 | Sheraton Seoul D Cube City Hotel | 5.0 star rating | 269 | Gangnam |
 | Sheraton Seoul Palace Gangnam Hotel | 5.0 star rating | 341 | Gangnam |
| Shillastay Guro Hotel Seoul | 3.0 star rating | | Gangbuk |
 | Shilla Stay Guro Hotel Seoul | 4.0 star rating | 310 | Gangbuk |
| Shillastay Gwanghwamun Hotel Seoul | 3.0 star rating | | Gangbuk |
 | Shilla Stay Gwanghwamun Hotel Seoul | 4.0 star rating | 339 | Seoul City |
 | Shillastay Mapo Hotel Seoul | 3.0 star rating | | Gangbuk |
 | Shilla Stay Seocho Hotel Seoul | 4.0 star rating | 305 | Seoul City |
| Shilla Stay Seodaemun Hotel Seoul | 4.0 star rating | 319 | Seoul City |
 | Shilla Stay Yeoksam Hotel Seoul | 4.0 star rating | 306 | Gangnam |
 | Shinchon Blue Motel Hotel Seoul | 1 Star | | Seoul City |
 | Shinchon Casaville Residence Hotel Seoul | Residence | 179 | Gangbuk |
 | Shinchon Hostel Hotel Seoul | 1 Star | | Seoul City |
| Shinchon S Hotel Seoul | 1 Star | 39 | Gangbuk |
| S Hotel Kkachisan Seoul | 1 Star | 89 | Seoul City |
 | Signiel Seoul Hotel | 5.0 star rating | 235 | Seoul City |
 | Sinchon Y Hotel Seoul | 1 Star | 41 | Gangbuk |
| Sinseoldong Guesthouse Dongdaemun Hotel Seoul | 1 Star | 16 | Seoul City |
| Skycity Residence Hotel Seoul | 2.0 star rating | 175 | Seoul City |
| Sky Motel Jongno Hotel Seoul | 2.0 star rating | 50 | Gangbuk |
 | Skypark Central Myeongdong Hotel Seoul | 4.0 star rating | 312 | Seoul City |
 | Skypark Dongdaemun I Hotel Seoul | 4.0 star rating | 254 | Seoul City |
| Sky Park in Myeong-dong Hotel Seoul | 3.0 star rating | | Gangbuk |
 | Skypark Myeongdong I Hotel Seoul | 3.0 star rating | 114 | Gangbuk |
 | Skypark Myeongdong II Hotel Seoul | 3.0 star rating | 120 | Gangbuk |
 | Skypark Myeongdong III Hotel Seoul | 3.0 star rating | 136 | Gangbuk |
| Snow Hotel Seoul | 3.0 star rating | 52 | Seoul City |
 | Solaria Nishitetsu Hotel Seoul Myeong-Dong | 4.0 star rating | 312 | Seoul City |
 | Solarium City Serviced Residence Hotel Seoul | 3.0 star rating | 79 | Gangbuk |
 | Somerset Palace Seoul Hotel | 4.0 star rating | 431 | Gangbuk |
| SR Hotel Seoul | 2.0 star rating | 82 | Seoul City |
| Standard Hotel Seoul | 3.0 star rating | | Gangbuk |
 | Stanford Hotel Seoul | 4.0 star rating | 239 | Gangbuk |
| Starria Hostel Hotel Seoul | Guest House | | Gangbuk |
| Stay B Hotel Myeongdong Seoul | 4.0 star rating | 100 | Gangbuk |
| Stay Gangnam Residence Hotel Seoul | Residence | 20 | Seoul City |
| Stay in GAM Jongno Hostel Hotel Seoul | 1 Star And A Half | 14 | Gangbuk |
 | Stay Seoul Residence Hotel | Residence | 30 | Seoul City |
| StaySeven Residence Mapo Hotel Seoul | Pending Category | 75 | Seoul City |
 | Staz Hotel Myeongdong 1 Seoul | 3.0 star rating | 150 | Seoul City |
 | Staz Hotel Myeongdong 2 Seoul | 3.0 star rating | 174 | Seoul City |
 | Stella Boutique 2 Hotel Seoul | 1 Star | 42 | Gangnam |
| Studio Tong Seoul Dongdaemun Hotel | 3.0 star rating | 47 | Seoul City |
 | Summit Dongdaemun Hotel Seoul | 4.0 star rating | 190 | Gangbuk |
 | Sunbee Insadong Hotel Seoul | 3.0 star rating | 42 | Gangbuk |